<template>
  <el-container>
    <el-header>
      <div>
        <img src="../assets/heima.png" alt />
        <span>后台电商管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCollapse ? '64px':'200px'">
          <div class="toggle-botton" @click="toggleCollapse">|||</div>
        <el-menu default-active="2" class="el-menu-vertical-demo" background-color="#333744" 
          text-color="#fff"
          active-text-color="blue" unique-opened :collapse="isCollapse" :collapse-transition="false" :router="true">
          <el-submenu :index="item.id+''" v-for="item in menulist" :key="item.id">
            <!-- 一级菜单 -->
            <template slot="title">
              <i :class="icons[item.id]"></i>
              <span>{{item.authName}}</span>
            </template>
            <!-- 二级菜单 -->
            <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id">
              <template slot="title">
                <i class="el-icon-menu"></i>
                <span>{{subItem.authName}}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 内容区域 -->
      <el-main>
          <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>
<script>
export default {
    data(){
        return {
            menulist:[],
            icons:{
                "125":"iconfont icon-user",
                "103":"iconfont icon-tijikongjian",
                "101":"iconfont icon-shangpin",
                "102":"iconfont icon-danju",
                "145":"iconfont icon-baobiao"
            },
            isCollapse:false
        }
    },
    created(){
        this.getMenuList()
    },
  methods: {
    logout() {
      // 退出功能，清空token 返回到登录页面
      window.sessionStorage.clear();
      this.$router.push("/login");
    },
    async getMenuList(){
        const {data:res} = await this.$http.get("menus")
        if(res.meta.status!==200) return this.$message.error(res.meta.msg)
        this.menulist=res.data
    },
    toggleCollapse(){
        this.isCollapse =! this.isCollapse
    }
  }
};
</script>
<style lang="less" scoped>
.el-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  color: #ffffff;
  align-items: center;
  > div {
    display: flex;
    align-items: center;
    span {
      padding-left: 15px;
    }
  }
}
.el-aside {
  background-color: #333744;
  .el-menu{
      border-right: none;
  }
  .toggle-botton{
      background-color: #4a5063;
      color:#ffffff;
      font-size: 10px;
      line-height: 24px;
      text-align: center;
      letter-spacing: 0.2em;
      cursor: pointer;
  }
}
.el-main {
  background-color: #eaedf1;
}
</style>